... control ,IGBT , High Reliability Comprehensive Self-Protection Design, Audible AlarmHT series online UPS 6-20kVA characteristics:1. True online double conversion ... . LCD/LED display.9. Cold start function.Parameters table of HT series online UPS 6-20kVA: ModelHT116KHT116KLHT1110KHT1110KLHT1115KLHT1120KLRated PowerPower6kVA/4.2kW10kVA/7kW15kVA/10 ...